TWECO PRODUCTS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5874770 Flexible interconnect film including resistor and capacitor layersOct 10, 96Feb 23, 99[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5772102 Gas lens assemblyExpiredJan 24, 97Jun 30, 98[B23K]
4967055 Plasma torchExpiredMar 31, 89Oct 30, 90[B23K]
D297783 Portable enclosure for oxygen arc cutting equipmentExpiredAug 05, 85Sep 27, 88[]
D293296 Torch for exothermic cutting electrodesExpiredAug 01, 84Dec 22, 87[]
4575604 Constant potential/constant current automatic control system for air-carbon arc metal removalExpiredOct 18, 84Mar 11, 86[B23K]
4571478 Electrode drive and nozzle system for an automatic air carbon-arc cutting and gouging torchExpiredMay 10, 84Feb 18, 86[B23K]
4554433 Welding conduit stopExpiredAug 03, 84Nov 19, 85[B23K]
4544139 Coated exothermic cutting electrodeExpiredOct 18, 84Oct 01, 85[B23K]
4540225 Swivel cable coupling for an air carbon-arc cutting and gouging torchExpiredSep 07, 83Sep 10, 85[H01R]
4529861 Welding gun connector assemblyExpiredApr 05, 84Jul 16, 85[B23K]
4527037 Electrode drive and nozzle system for an automatic air carbon-arc cutting and gouging torchExpiredApr 21, 83Jul 02, 85[B23P, B23K]
4517440 Underwater electrode with waterproof integrityExpiredFeb 22, 80May 14, 85[B23K]
4437649 Exothermic cutting electrodeExpiredApr 27, 83Mar 20, 84[B23K]
4268740 Flex head welding torch having disc spring biasing elementsExpiredFeb 23, 79May 19, 81[B23K]

Top Inventors for This Owner

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